EP 4224558 A1 20230809 - NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Title (en)
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Title (de)
SEKUNDÄRBATTERIE MIT NICHTWÄSSRIGEM ELEKTROLYTEN
Title (fr)
ACCUMULATEUR À ÉLECTROLYTE NON AQUEUX
Publication
Application
Priority
- JP 2020164937 A 20200930
- JP 2021035243 W 20210927
Abstract (en)
A non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte, in which lithium metal deposits on the negative electrode during charge, and the lithium metal dissolves from the negative electrode into the non-aqueous electrolyte during discharge. The positive electrode includes a positive electrode active material, the positive electrode active material includes a composite oxide containing lithium and a transition metal, and the non-aqueous electrolyte contains an oxalate salt. The composite oxide contains Ni and at least one selected from the group consisting of Fe, V, Ti, and Nb, and has a structure based on a crystal structure belonging to a space group R-3m.
IPC 8 full level
H01M 4/131 (2010.01); H01M 4/134 (2010.01); H01M 4/40 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/052 (2010.01); H01M 10/0568 (2010.01)
CPC (source: EP US)
H01M 4/131 (2013.01 - EP); H01M 4/134 (2013.01 - EP US); H01M 4/382 (2013.01 - EP); H01M 4/525 (2013.01 - EP US); H01M 10/052 (2013.01 - EP); H01M 10/0568 (2013.01 - EP US); H01M 10/4235 (2013.01 - EP); H01M 4/628 (2013.01 - EP); H01M 10/052 (2013.01 - US); H01M 2004/028 (2013.01 - EP US); H01M 2300/0034 (2013.01 - US); H01M 2300/0045 (2013.01 - EP); Y02E 60/10 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4224558 A1 20230809; EP 4224558 A4 20241009; CN 116261789 A 20230613; JP WO2022071175 A1 20220407; US 2023369582 A1 20231116; WO 2022071175 A1 20220407
DOCDB simple family (application)
EP 21875477 A 20210927; CN 202180066723 A 20210927; JP 2021035243 W 20210927; JP 2022553927 A 20210927; US 202118029209 A 20210927